U.S. patent number 6,010,160 [Application Number 08/930,537] was granted by the patent office on 2000-01-04 for quick connector having ring for confirming proper connection.
This patent grant is currently assigned to Proprietary Technology, Inc.. Invention is credited to Donald D. Bartholomew.
United States Patent |
6,010,160 |
Bartholomew |
January 4, 2000 |
**Please see images for:
( Certificate of Correction ) ** |
Quick connector having ring for confirming proper connection
Abstract
In its preferred embodiment, a quick connector (10) for
connecting a male conduit (12) to a female receptacle (14) has a
pair of waist segments (60 and 62), a body segment (56), and a pair
of leg segments (68). Each of the leg segments (68) are defined by
a pair of projecting elements (76) which are at least partially
compressible toward one another thereby causing the pair of waist
segments (60 and 62) to move toward one another. A confirmer ring
(114) is provided on the pair of projecting elements (76).
Confirmation that the quick connector (10) is properly locked in
place is made when the confirmer ring (114) is fully seated within
a portion of the opening (18) of female receptacle (14). An
alternate embodiment provides for use of the confirmer ring (114)
as an installing tool when connecting the male conduit (12) with
the female receptacle (14). An additional alternate embodiment
allows usage of the confirmer ring (114) as a tool for installation
and decoupling of the male conduit (12) into the female receptacle
(14), as well as for confirming the connection.
Inventors: |
Bartholomew; Donald D. (Mt.
Clemens, MI) |
Assignee: |
Proprietary Technology, Inc.
(Bloomfiled Hills, MI)
|
Family
ID: |
25459431 |
Appl.
No.: |
08/930,537 |
Filed: |
January 22, 1998 |
PCT
Filed: |
March 27, 1995 |
PCT No.: |
PCT/US95/03798 |
371
Date: |
January 22, 1998 |
102(e)
Date: |
January 22, 1998 |
PCT
Pub. No.: |
WO96/30688 |
PCT
Pub. Date: |
October 03, 1996 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
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PCTUS9311281 |
Nov 16, 1993 |
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Current U.S.
Class: |
285/39; 285/319;
29/426.6; 285/921; 285/84; 29/453; 285/93 |
Current CPC
Class: |
F16L
37/098 (20130101); Y10T 29/49824 (20150115); Y10S
285/921 (20130101); F16L 2201/10 (20130101); Y10T
29/49876 (20150115) |
Current International
Class: |
F16L
37/00 (20060101); F16L 37/098 (20060101); F16L
039/00 () |
Field of
Search: |
;285/39,84,93,319,308,320,921 ;29/426.6,453 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Arola; Dave W.
Attorney, Agent or Firm: Harness, Dickey & Pierce,
PLC
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of PCT/US93/11281, filed
Nov. 16, 1993.
Claims
What is claimed is:
1. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, said female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with said inside surface, said assembly comprising:
a member having a throughbore and interface portions extending
therefrom for engaging the female receptacle, said member
surrounding a predetermined portion of the male conduit, said
member being positionable within the enlarged lead-in section of
the female receptacle;
a confirmer body for confirming the positioning of said member
within the female receptacle, said confirmer body including an aft
end, said confirmer body being movable between a seated position
wherein at least a portion of said confirmer body is nested within
the enlarged lead-in section of the female receptacle and wherein
said aft end of said confirmer body rests evenly with respect to
the female receptacle and an unseated position wherein said
confirmer body is in spaced apart relation from the enlarged
lead-in section, said confirmer body transferring the pull apart
force from said male conduit to said female receptacle through said
interface portions; and
whereby said confirmer body confirms to an installer that the
member is positioned within the female receptacle when said aft end
of said confirmer body rests evenly with respect to the female
receptacle when said confirmer body is moved toward said seated
position.
2. The quick connector assembly of claim 1, wherein the male
conduit has a longitudinal axis and wherein said member includes a
leg segment attached thereto, said leg segment being defined by a
pair of projecting elements each extending substantially
perpendicular to said confirmer body such that said leg segment is
orientated substantially parallel with the longitudinal axis of the
male conduit adjacent thereto.
3. The quick connector assembly of claim 2, wherein said leg
segment is composed of a flat strip of material.
4. The quick connector assembly of claim 2, wherein said leg
segment is composed of a wire.
5. The quick connector assembly of claim 2, wherein said member
includes a pair of leg segments.
6. The quick connector assembly of claim 5, wherein each of said
pair of projecting elements are at least partially movable toward
one another for an installing and removing position and away from
one another for an installed position.
7. The quick connector assembly of claim 6, wherein said projecting
elements are movable toward each other by use of the installer's
hands.
8. The quick connector assembly of claim 6, wherein said projecting
elements are movable toward each other by use of a tool.
9. The quick connector assembly of claim 5, wherein each of said
leg segments is integral with said member, said member and said leg
segments being formed from a piece of wire, said piece of wire
having a pair of free ends, said free ends being attached by
welding.
10. The quick connector assembly of claim 5, wherein each of said
leg segments is integral with said member, said member and said leg
segments being formed from two pieces of wire, each of said two
pieces of wire having a pair of free ends, each of said pair of
free ends of a first one of said two pieces of wire being attached
by welding to each of said pair of free ends of a second one of
said two pieces of wire.
11. The quick connector assembly of claim 5, wherein said aft end
of said confirmer body has an aperture centrally defined therein,
said aperture including an inner wall, said inner wall having
depending therefrom an opposed pair of fingers.
12. The quick connector assembly of claim 11, wherein each finger
of said pair of fingers is movable between said pair of projecting
elements of each of said leg segments.
13. The quick connector assembly of claim 12, wherein each finger
of said pair of fingers prevents movement of adjacent projecting
elements toward each other and subsequent removal of said confirmer
body from the female receptacle when said confirmer body is in said
seated position.
14. The quick connector assembly of claim 1, wherein said member is
composed of a first material and said confirmer body is composed of
a second material, said first and said second materials being
different from each other.
15. The quick connector assembly of claim 14, wherein said first
material is a plastic and said second material is a metal.
16. The quick connector assembly of claim 14, wherein said first
material is a metal and said second material is a plastic.
17. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, said female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with said inside surface, said assembly comprising:
a member having a throughbore and interface portions extending
therefrom for engaging the female receptacle, said member
surrounding a predetermined portion of the male conduit, said
member being positionable within the enlarged lead-in section of
the female receptacle; and
a confirmer body for confirming the positioning of said member
within the female receptacle, said confirmer body including an aft
end, said confirmer body being slidably movable along said male
conduit between a seated position wherein at least a portion of
said confirmer body is nested within the enlarged lead-in section
of the female receptacle and wherein said aft end of said confirmer
body rests evenly with respect to the female receptacle and an
unseated position wherein said confirmer body is in spaced apart
relation from the enlarged lead-in section,
whereby engagement of said interface portions with said female
receptacle results in said member being locked against removal from
the female receptacle and whereby said confirmer body confirms to
an installer that the member is positioned within the female
receptacle when said aft end of said confirmer body rests evenly
with respect to the female receptacle when said confirmer body is
moved into said seated position, said confirmer body preventing
disengagement of said interface portions with said female
receptacle when said confirmer body is moved into said seated
position.
18. The quick connector assembly of claim 17, wherein said member
is composed of a first material and said confirmer body is composed
of a second material, said first and said second materials being
different from each other.
19. The quick connector assembly of claim 18, wherein said first
material is a plastic and said second material is a metal.
20. The quick connector assembly of claim 18, wherein said first
material is a metal and said second material is a plastic.
21. The quick connector assembly of claim 17, wherein the male
conduit includes a longitudinal axis and wherein said member
includes a pair of leg segments attached thereto, each of said leg
segments extending substantially parallel to the longitudinal axis
of the male conduit adjacent thereto.
22. The quick connector assembly of claim 21, wherein each of said
leg segments is composed of a flat strip of material.
23. The quick connector assembly of claim 21, wherein each of said
leg segments is composed of a wire.
24. The quick connector assembly of claim 23, wherein each of said
leg segments is integral with said interface portions, said
interface portions and said leg segments being formed from a piece
of wire, said piece of wire having a pair of free ends attached by
welding.
25. The quick connector assembly of claim 21, wherein each of said
pair of leg segments are at least partially movable toward one
another for an installing and removing position and away from one
another for an installed position.
26. The quick connector assembly of claim 25, wherein said leg
segments are movable toward each other by use of the installer's
hands.
27. The quick connector assembly of claim 25, wherein said leg
segments elements are movable toward each other by use of a
tool.
28. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, said female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with said inside surface, said assembly comprising:
a member having a throughbore, said member surrounding a
predetermined portion of the male conduit, said member being
positionable within the enlarged lead-in section of the female
receptacle, said member including a body surrounding said male
conduit and a pair of waist segments attached to said surrounding
body, said waist segments being interconnected by a pair of leg
segments, each of said leg segments being defined by a pair of
projecting elements each extending perpendicular to said waist
segments, each pair of projecting elements forming a gap
therebetween; and
a confirming ring for confirming the positioning of said member
within the female receptacle, said confirming ring including a fore
end and an aft end, said fore end having formed thereon a
receptacle-abutting face for nesting with the enlarged lead-in
portion of the female receptacle, said aft end of said ring having
a finger formed thereon, said finger being slidably movable within
one of said gaps formed between each pair of projecting
elements.
29. The quick connector assembly of claim 28, wherein said member
is composed of a first material and said confirming ring is
composed of a second material, said first and said second materials
being different from each other.
30. The quick connector assembly of claim 29, wherein said first
material is a plastic and said second material is a metal.
31. The quick connector assembly of claim 29, wherein said first
material is a metal and said second material is a plastic.
32. The quick connector assembly of claim 28, wherein said ring is
slidably movable along the male conduit between a seated position
wherein at least a portion of said ring is nested within the
enlarged lead-in section of the female receptacle and wherein said
aft end of said ring rests evenly with respect to the female
receptacle and an unseated position wherein said ring is in spaced
apart relation from the enlarged lead-in section.
33. The quick connector assembly of claim 28, wherein each of said
pair of projecting elements are at least partially movable toward
one another for an installing and removing position and away from
one another for an installed position.
34. The quick connector assembly of claim 33, wherein said
projecting elements are movable toward each other by use of the
installer's hands.
35. The quick connector assembly of claim 33, wherein said
projecting elements are movable toward each other by use of a
tool.
36. The quick connector assembly of claim 28, wherein each of said
leg segments is composed of a flat strip of material.
37. The quick connector assembly of claim 28, wherein each of said
leg segments is composed of a wire.
38. The quick connector assembly of claim 28, wherein each of said
leg segments is integral with said waist segments, said waist
segments and said leg segment being formed from a piece of wire,
said piece of wire having a pair of free ends, said ends being
attached by welding.
39. The quick connector assembly of claim 28, wherein each finger
of said pair of fingers prevents movement of adjacent projecting
elements toward each other and subsequent removal of said body from
the female receptacle when said body is in said seated
position.
40. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, said female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with said inside surface, said assembly comprising:
a member having a throughbore, said member surrounding a
predetermined portion of the male conduit, said member being
positionable within the enlarged lead-in section of the female
receptacle, said member including a body surrounding said male
conduit and a pair of waist segments attached to said body, said
waist segments being interconnected by a pair of leg segments, each
of said leg segments being defined by a pair of projecting elements
each extending perpendicular to said waist segments, each pair of
projecting elements forming a gap therebetween; and
a confirming ring for confirming the positioning of said member
within the female receptacle, said confirming ring including a fore
end and an aft end, said fore end having formed thereon a
receptacle-abutting face for nesting with the enlarged lead-in
portion of the female receptacle, said aft end of said ring having
a pair of fingers formed thereon, one finger of said pair of
fingers being slidably movable within one of said gaps formed
between each pair of projecting elements, said ring being slidably
movable along the male conduit between a seated position wherein at
least a portion of said ring is nested within the enlarged lead-in
section of the female receptacle and wherein said aft end of said
ring rests evenly with respect to the female receptacle and an
unseated position wherein said ring is in spaced apart relation
from the enlarged lead-in section,
whereby said confirming ring confirms to an installer that the male
conduit is positioned within the female receptacle when said
connector assembly is correctly installed.
41. The quick connector assembly of claim 40, wherein said member
is composed of a first material and said confirming ring is
composed of a second material, said first and said second materials
being different from each other.
42. The quick connector assembly of claim 41, wherein said first
material is a plastic and said second material is a metal.
43. The quick connector assembly of claim 41, wherein said first
material is a metal and said second material is a plastic.
44. The quick connector assembly of claim 40, wherein each of said
pair of projecting elements are at least partially movable toward
one another for an installing and removing position and away from
one another for an installed position.
45. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, said female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with said inside surface, said assembly comprising:
a member having a throughbore, said member surrounding a
predetermined portion of the male conduit, said member being
positionable within the enlarged lead-in section of the female
receptacle, said member including a body disposed around said male
conduit and a pair of waist segments attached to said body, said
waist segments being interconnected by a pair of leg segments, each
of said leg segments being defined by a pair of projecting elements
each extending perpendicular to said waist segments, each pair of
projecting elements forming a gap therebetween, said waist segments
having interface portions mounted thereon, said waist segments
being attachably engageable with the female receptacle; and
a confirming ring for confirming the positioning of said member
within the female receptacle, said confirming ring including a fore
end and an aft end, said fore end having formed thereon a
receptacle-abutting face for nesting with the enlarged lead-in
portion of the female receptacle, said aft end of said ring having
a finger formed thereon, said finger being slidably movable within
one of said gaps formed between each pair of projecting elements,
said ring being slidably movable along the male conduit between a
seated position wherein at least a portion of said ring is nested
within the enlarged lead-in section of the female receptacle and
wherein said aft end of said ring rests evenly with respect to the
female receptacle and an unseated position wherein said ring is in
spaced apart relation from the enlarged lead-in section,
whereby engagement of said interface portions with the female
receptacle results in said member being locked against removal from
the female receptacle and whereby said confirmer ring confirms to
an installer that the male conduit is positioned within the female
receptacle when said aft end of said ring rests evenly with respect
to the female receptacle when said ring is moved toward said seated
position.
46. A method of coupling a male conduit to a female receptacle
using a quick connector provided in association with said male
conduit, said quick connector including a member having a leg
segment extending substantially perpendicularly from said member,
said female receptacle including a member-receiving channel, said
quick connector further including a confirmer ring, said confirmer
ring being slidable along said leg segment between a first position
wherein said confirmer ring is spaced apart from said member and a
second position wherein said confirmer ring is substantially seated
against said female receptacle thereby confirming to the installer
that said member of said quick connector is properly locked within
said channel of said female receptacle, said method including the
steps of:
sliding said confirmer ring to said first position on said leg
segment;
inserting said male conduit into said female receptacle such that
said member engages said channel of said female receptacle;
sliding said confirmer ring from said first position to said second
position; and
confirming by reference to said confirmer ring that said member of
said quick connector is locked within said channel.
47. The method of claim 46, wherein said female receptacle includes
an outer wall and said confirmer ring includes a body, said method
further including the step of confirming that said body of said
confirmer ring rests against said outer wall of said female
receptacle.
48. The method of claim 46, wherein said leg segment comprises a
pair of projecting elements, said elements being partially
compressible toward one another and wherein said confirmer ring
includes a projecting finger, said finger being movable between
said pair of projecting elements, said method further including the
step of compressing said elements toward one another to engage said
member of said quick connector with said channel of said female
receptacle.
49. The method of claim 48, further including the step of
uncoupling said male conduit from said female conduit by using a
tool to compress said pair of projecting elements toward one
another.
50. The method of claim 48, further including the step of
uncoupling said male conduit from said female conduit by using a
hand to compress said pair of projecting elements toward one
another.
51. A method of connecting a male conduit to a female receptacle
using a quick connector provided in association with said male
conduit, said quick connector including a member having a leg
segment extending substantially perpendicularly from said member,
said leg segment including a pair of projecting elements, said
projecting elements being partially compressible toward one
another, said female receptacle including a member-abutting wall
and a member-receiving channel, said quick connector further
including a ring positionable substantially adjacent said member,
said method including the steps of:
grasping the quick connector and the male conduit; and
inserting said male conduit and a portion of said associated quick
connector into said female receptacle, whereby said projecting
elements are compressed toward one another, until said member abuts
said member-abutting wall and said projecting elements move away
from one another; and
sliding said ring adjacent to said member to prevent said
projecting elements from being compresses toward one another.
52. The method of connecting of claim 51, further including the
step of uncoupling said male conduit from said female receptacle by
sliding said ring away from said member and using a tool to apply
compressing force to said pair of projecting elements.
53. The method of connecting of claim 51, further including the
step of uncoupling said male conduit from said female receptacle by
sliding said ring away from said member and using a hand to apply
compressing force to said pair of projecting elements.
54. A method of removing a male conduit from a female receptacle
using a quick connector provided in association with said male
conduit, said quick connector including a member having a pair of
latches extending therefrom, said latches being partially
compressible toward one another, said female receptacle including a
member-abutting wall and a member-receiving channel, said quick
connector further including a confirming ring operatively
associated with said member for preventing compression of said
latches when said confirming ring is in an installed condition and
for confirming the correctness of the installation, said method
including the steps of:
removing said confirming ring;
compressing said pair of latches toward one another; and
removing said male conduit and said associated quick connector from
said female receptacle.
55. The method of removing of claim 54, wherein said step of
compressing includes the step of using a tool to apply compressing
force to said ring.
56. The method of removing of claim 54, wherein said step of
compressing includes the step of using a hand to apply compressing
force to said ring.
57. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, the female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with the inside surface, the bore having defined therein a
latch-receiving slot, said assembly comprising:
a latch deformable between an engaging position for engagement with
the latch-receiving slot and a disengaging position for
disengagement from the latch-receiving slot;
a deformable spring operatively associated with said latch for
urging said latch into said engaging position; and
a confirmer ring for confirming the positioning of the male conduit
within the female receptacle, said confirmer ring being operatively
associated with said latch, said confirmer ring including a body,
said body including an aft end, said body being movable in
conjunction with said latch and the male conduit into a seated
position wherein at least a portion of said body is nested within
said enlarged lead-in section of the female receptacle and wherein
said aft end of said body rests evenly with respect to the female
receptacle;
whereby said confirmer ring transfers separation forces existing
between the male conduit and the female receptacle away from the
male conduit and confirms to an installer that the male conduit is
positioned within the female receptacle when said aft end of said
body rests evenly with respect to the female receptacle when said
body, in conjunction with said latch and the male conduit, is moved
toward said seated position.
58. The quick connector assembly of claim 57, wherein said latch
and said deformable spring comprise a single integral spring-latch
component.
59. The quick connector assembly of claim 58, wherein said
confirmer ring and said spring-latch component are composed of
different materials.
60. The quick connector assembly of claim 58, wherein said
confirmer ring and said spring-latch component are composed of the
same material.
61. The quick connector assembly of claim 57, wherein said
confirmer ring and said deformable spring comprise a single
integral ring-spring component.
62. The quick connector assembly of claim 61, wherein said
ring-spring component and said latch component are composed of
different materials.
63. The quick connector assembly of claim 61, wherein said
ring-spring component and said latch component are composed of the
same material.
64. The quick connector of claim 57, wherein said confirmer ring
and said latch comprise a single integral ring-latch component.
65. The quick connector of claim 64, wherein said deformable spring
and said ring-latch component are composed of different
materials.
66. The quick connector of claim 64, wherein said deformable spring
and said ring-latch component are composed of the same
material.
67. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, the female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with the inside surface, the bore having defined therein a
latch-receiving slot, said assembly comprising:
a latch deformable between an engaging position for engagement with
the latch-receiving slot and a disengaging position for
disengagement from the slot; and
a confirmer ring spring component for urging said latch into said
engaging position and for confirming the positioning of the male
conduit within the female receptacle, said confirmer ring spring
component being operatively associated with said latch, said
confirmer ring spring component including a body, said body
including an aft end, said body being movable in conjunction with
said latch and the male conduit into a seated position wherein at
least a portion of said body is nested within said enlarged lead-in
section of the female receptacle and wherein said aft end of said
body rests evenly with respect to the female receptacle;
whereby said confirmer ring spring component confirms to an
installer that the male conduit is positioned within the female
receptacle when said aft end of said body rests evenly with respect
to the female receptacle when said body, in conjunction with said
latch and the male conduit, is moved toward said seated
position.
68. The quick connector assembly of claim 67, wherein said latch
and said confirmer ring spring component are composed of different
materials.
69. The quick connector assembly of claim 67, wherein said latch
and said confirmer ring spring component are composed of the same
material.
70. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, the female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with the inside surface, the bore having defined therein a
latch-receiving slot, said assembly comprising:
a confirmer ring including a latch portion deformable between an
engaging position for engagement with the latch-receiving slot and
a disengaging position for disengagement from the latch-receiving
slot and for confirming the positioning of the male conduit within
the female receptacle, said confirmer ring including a body, said
body including an aft end, said body being movable in conjunction
with said latch portion and the male conduit into a seated position
wherein at least a portion of said body is nested within said
enlarged lead-in section of the female receptacle and wherein said
aft end of said body rests evenly with respect to the female
receptacle;
a deformable spring operatively associated with said latch portion
for urging said latch portion into said engaging position; and
whereby said confirmer ring confirms to an installer that the male
conduit is positioned within the female receptacle when said aft
end of said body rests evenly with respect to the female receptacle
when said body, in conjunction with the male conduit, is moved
toward said seated position.
71. The quick connector assembly of claim 70, wherein said
confirmer ring and said deformable spring are composed of different
materials.
72. The quick connector assembly of claim 70, wherein said
confirmer ring and said deformable spring are composed of the same
material.
73. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, the female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with the inside surface, the bore having defined therein a
latch-receiving slot, said assembly comprising:
a latch deformable between an engaging position for engagement with
the latch-receiving slot and a disengaging position for
disengagement from the latch-receiving slot;
a deformable spring for urging said latch into said engaging
position; and
a confirmer ring for confirming the positioning of the male conduit
within the female receptacle, said confirmer ring including a body,
said body including an aft end, said body being movable in
conjunction with said latch and the male conduit into a seated
position wherein at least a portion of said body is nested within
said enlarged lead-in section of the female receptacle and wherein
said aft end of said body rests evenly with respect to the female
receptacle, said latch, said deformable spring, and said confirmer
ring comprising a single integral component;
whereby said confirmer ring transfers separation forces existing
between the male conduit and the female receptacle away from the
male conduit and confirms to an installer that the male conduit is
positioned within the female receptacle when said aft end of said
body rests evenly with respect to the female receptacle when said
body, in conjunction with said latch and the male conduit, is moved
toward said seated position.
74. The quick connector assembly of claim 73, further including a
locking element for preventing the removal of said integral
component, said locking element comprising a body, said body having
at least one spring arm, said spring arm being insertable between
said confirmer ring and said male conduit, whereby said spring arm
prevents the removal of said integral component from said female
conduit.
75. The quick connector assembly of claim 74, wherein said spring
arm comprises a pair of opposed spring arms.
76. The quick connector assembly of claim 74, wherein said body of
said locking element has an aperture formed therein through which
said male conduit is passed.
77. A quick connector assembly for coupling a male conduit to a
female receptacle and to confirm the coupling, the female
receptacle having a bore centrally extending therethrough defined
by an inside surface and an enlarged lead-in section continuous
with the inside surface, the bore having defined therein a
latch-receiving slot, said assembly comprising:
a latch-deformable spring including a latch portion and a
deformable spring portion, said latch portion being deformable
between an engaging position for engagement with the
latch-receiving slot and a disengaging position for disengagement
from the latch-receiving slot, said deformable spring portion
urging said latch portion into said engaging position;
a confirmer ring for confirming the positioning of the male conduit
within the female receptacle, said confirmer ring being operatively
associated with said latch-deformable spring, said confirmer ring
including a body, said body including an aft end, said body being
movable in conjunction with said latch-deformable spring and the
male conduit into a seated position wherein at least a portion of
said body is nested within said enlarged lead-in section of the
female receptacle and wherein said aft end of said body rests
evenly with respect to the female receptacle;
whereby said confirmer ring transfers separation forces existing
between the male conduit and the female receptacle away from the
male conduit and confirms to an installer that the male conduit is
positioned within the female receptacle when said aft end of said
body rests evenly with respect to the female receptacle when said
body, in conjunction with said latch-deformable spring and the male
conduit, is moved toward said seated position.
78. A method of coupling a male conduit to a female receptacle
using a quick connector provided in association with said male
conduit, said quick connector including a member having a leg
segment extending substantially perpendicularly from said member,
said female receptacle including a member-receiving channel, said
quick connector further including a confirmer ring, said confirmer
ring being slidable along said leg segment between a first position
spaced from said member and a confirming position adjacent said
member where said confirmer ring is substantially seated against
said female receptacle thereby confirming to the installer that
said member of said quick connector is properly locked within said
channel of said female receptacle, said method including the steps
of:
sliding said confirmer ring to said first position on said leg
segment;
inserting said male conduit into said female receptacle such that
said member engages said channel of said female receptacle;
sliding said confirmer ring to said confirming position; and
confirming by reference to said confirmer ring that said member of
said quick connector is locked within said channel.
79. A quick connector assembly for coupling a male conduit to a
female receptacle, said female receptacle having a bore centrally
extending therethrough defined by an inside surface and an enlarged
lead-in section continuous with said inside surface, said assembly
comprising:
a member having a throughbore and interface portions extending
therefrom for engaging the female receptacle, said member
surrounding a predetermined portion of the male conduit, said
member being positionable within the enlarged lead-in section of
the female receptacle; and
a confirmer body being slidably movable along said male conduit
between a seated position wherein at least a portion of said
confirmer body is nested within the enlarged lead-in section of the
female receptacle and an unseated position wherein said confirmer
body is in spaced apart relation from the enlarged lead-in
section,
whereby engagement of said interface portions with said female
receptacle results in said member being locked against removal from
the female receptacle and whereby said confirmer body prevents
disengagement of said interface portions with said female
receptacle when said confirmer body is moved into said seated
position.
Description
BACKGROUND OF THE INVENTION
This invention relates generally to a conduit coupling through
which fluid flows. More particularly, the present invention relates
to a quick connector which retains a male conduit within a female
receptacle and which includes a ring for confirming proper
connection.
In the automotive industry (as well as for many other industries)
the need always exists for low cost, reliable, and easy-to-assemble
components. This need is especially apparent with respect to
providing a connection between fluid conveying conduits, such as
fuel, brake, or refrigerant lines. Traditionally, such a connection
is comprised of a male conduit being retained within a female
receptacle through use of threaded fittings, flare fittings, or
through bolted-on flanges.
More recently, a variety of snap together quick connect retainers
have been used in place of the conventional methods. These quick
connectors typically have a plurality of flexible legs which engage
an annular bead attached to a male conduit and also engage an
undercut groove formed within a female member. Two such examples
are disclosed in U.S. Pat. No. 4,601,497 entitled "Swivelable Quick
Connector Assembly" which issued on Jul. 22, 1986, and U.S. Pat.
No. 4,778,203 entitled "Swivelable Quick Connector for High
Temperature Connection" which issued on Oct. 18, 1988, both of
which were invented by the inventor of the present invention and
are incorporated by reference herewithin. Another quick connector
is flat with pairs of annular arms extending therearound which are
radially flexible. Other quick connectors which were invented by
the inventor of the present invention are disclosed in U.S. Pat.
Nos. 4,524,995 and 4,423,892, both of which are entitled
"Swivelable Quick Connector Assembly" and which issued on Jun. 25,
1985, and Jan. 23, 1984, respectively, and are incorporated by
reference herewithin.
While the aforementioned quick connectors present significant
improvements in the art, each leg member of these devices must
typically resist longitudinal pull out forces and must generate
radial retention forces. Moreover, the legs are radially compressed
during installation. Accordingly, in order to enhance the ability
to either withstand forces in the longitudinal direction or
generate radially directed forces, the part must often be
compromised with regard to the other forces perpendicular thereto.
Furthermore, the aforementioned quick connectors fail to provide a
method by which proper connection of the male and female components
may be readily determined. Therefore, it would be desirable to have
a quick connector which can be easily installed and removed, is
inexpensive to manufacture and which has separate segments for
withstanding longitudinal pull out forces and generating radial
retention forces, but which can be much shorter than conventional
connectors by reducing the length inside the female portion of the
connector to the length currently realized with threaded
connectors. It is also desirable to have a quick connector that
provides a feature by which the installer can verify that a proper
connection has been made.
SUMMARY OF THE PRESENT INVENTION
In accordance with the present invention, a number of embodiments
of a new and useful quick connector are provided to couple a male
conduit within the bore of a female receptacle and to allow the
installer to verify that the male and female components are
properly connected. The quick connector has a pair of waist
segments, a latch segment, a body segment with an aperture therein,
and a leg or spring segment. The leg segment is defined by a pair
of projecting elements which urge the waist segments radially
outward for engagement with the female receptacle. The projecting
elements are also partially compressible toward one another thereby
allowing the pair of waist segments to be moved toward one another
for installation and disassembly.
In one general embodiment, a confirmer ring is provided that is
axially movable along the projecting elements between a
lock-verifying or seated position and an unlocked or unseated
position. After the quick connector of the present invention is
moved to its receptacle-engaging position, the confirmer ring is
moved from its unseated position to a seated position. Confirmation
that the connector is properly locked in place is made when the
ring is fully seated within a portion of the open end of the female
receptacle.
In an alternate general embodiment, the confirmer ring does not
slide relative to the projecting elements, but rather is relatively
fixed. In this general embodiment the ring is still used to confirm
the connection and is additional used to assist in
installation.
These two general embodiments are presented in various forms that
all incorporate the confirmer ring, a latch portion for engagement
with a female component, and a spring portion for effecting
engagement of the latch portion with the female component. The
various forms of the present invention include:
1. A quick connector comprising a confirmer ring and a separate
spring-latch combination, made from more than one type of material,
where the ring prevents the disengagement of the latch portion from
the female component;
2. a quick connector comprising a confirmer ring and a separate
spring-latch combination, all made from more than one type of
material, where the ring installs the spring-latch combination and
confirms the correct installation of the male component in the
female component;
3. a quick connector comprising a confirmer ring-spring combination
of a first material and a latch portion of a second material;
4. a quick connector comprising a confirmer ring-latch combination
of a first material and a spring portion of a second material;
and
5. a quick connector comprising a unified ring-spring-latch
combination.
The quick connector of the present invention offers several
advantages over the prior art quick connectors. Among these
advantages is that the waist segment and latch segment are
optimized to withstand radially compressive insertion and removal
forces while transmitting longitudinal retention forces that would
otherwise separate male and female components in association with
the female receptacle. Concurrently, the body segment is optimized
to withstand longitudinal pull-out forces between the attached male
conduit and the adjacent waist segments.
Furthermore, both the confirmer ring and the connector of the
present invention can be easily attached and unattached from the
female receptacle, thus providing an inexpensive-to-assemble
system.
With respect to the first general embodiment, easy insertion is
accomplished by axially moving the confirmer ring to its unseated
position along the projecting elements of the connector, at least
partially compressing the projecting elements of the leg segment
toward one another by engagement against a lead-in chamfer in the
female portion of the connector, inserting the body into the female
receptacle, releasing compressive tension on the projecting
elements whereby the compressed engaging lugs attached to the waist
sections are expanded into a cavity having a larger diameter, and
sliding the confirmer ring into its lock-verifying or seated
position with the confirming ring in the lock verifying position in
which the lock-in lugs cannot be uncoupled in this first
embodiment.
Alternatively, and according to the second general embodiment, the
confirmer ring does not slide, and by providing a graspable region,
acts to assist in the installation of the male portion into the
female portion of the connector. In this embodiment the confirmer
ring still functions to confirm that the installation is properly
made. The connection can be uncoupled with the confirmer ring in
the forward position in its second form (as set forth above) and up
to its fifth form (also as set forth above).
Additional advantages of the present quick connector over the prior
art include low manufacturing costs and broad application. The
latter advantage is evident in that the present quick connector is
operable with most conventional non-swivelable and swivelable male
conduits and with many traditional female receptacles so as to
convert a rigidly fixed conduit of conventional threaded connectors
to a swivel-type connection.
The quick connectors of the present invention have separated the
springing radial requirement from the requirement to longitudinally
abut a wall in the female receptacle. This is accomplished through
use of the aforementioned legs as the springing member, through a
separate springing member, or through a combination of the
confirmer ring with a latch and spring. The quick connector of the
present invention maintains the male conduit in alignment within
the female receptacle thereby providing proper registry of a seal,
the correctness of which can be easily verified by the confirmer
ring.
The present invention is also beneficial since it allows the male
conduit and female receptacle to incorporate longitudinally smaller
sealing and retaining areas than those associated with traditional
quick connect couplings.
BRIEF DESCRIPTION OF THE DRAWINGS
The above-noted advantages as well as other advantages of the
present invention will become apparent to one skilled in the art by
reading the following specification and subjoined claims in
conjunction with reference to the following drawings in which:
FIG. 1 is an elevated side view showing a first preferred
embodiment of a quick connector of the present invention in
relation to interlocked male and female components with the
confirmer ring not shown;
FIG. 2 is a top view of the embodiment of the present invention
quick connector illustrated in FIG. 1;
FIG. 3 is a sectional view of the embodiment of the quick connector
of the present invention shown in FIG. 1 in relation to a male
conduit and a female receptacle with the confirmer ring and a
spring-latch combination;
FIG. 4 is an exploded view of the quick connector embodiment of
FIG. 1 situated between male and female components;
FIG. 5 is a perspective view showing a preferred embodiment of the
quick connector of the present invention with a spring-latch
combination;
FIG. 6 is a perspective view showing a radial spring member portion
of the embodiment shown in FIG. 5;
FIG. 7 is a perspective view showing a body segment of the
embodiment shown in FIG. 5;
FIG. 8 is an end view of the first preferred embodiment of the
present invention quick connector as seen from the radial
member;
FIG. 9 is a perspective view of a confirmer ring for use with the
spring portion of the legs of the previous figures;
FIG. 10 is a sectional view similar to that of FIG. 3 but showing
the confirmer ring positioned in spaced apart relation from the
female receptacle;
FIG. 11 is a sectional view of another preferred embodiment of the
present invention quick connector in relation to the male conduit
and the female receptacle;
FIG. 12 is an exploded view of the quick connector embodiment of
FIG. 11 situated between the male and female components;
FIG. 13 is a perspective view showing a different preferred
embodiment of the quick connector of the present invention;
FIG. 14 is a sectional view similar to that of FIG. 11 but showing
a pair of pliers to remove the quick connector from the female
component;
FIG. 15 is an isometric view of a retainer body of an alternate
embodiment;
FIG. 6 is an isometric view of a wire form used in association with
the retainer body of FIG. 15;
FIG. 17A is an isometric view of a first side of a confirmer
ring-spring combination composed of the same type of material;
FIG. 17B is an isometric view of a second side of the combination
of FIG. 17A;
FIG. 18 is an isometric view of the assembled components of FIGS.
16, 17A, and 17B and the retainer body of FIG. 15 that transfers
forces from the male portion to the female portion of the
connection;
FIG. 19 is a spring usable in relation with an additional alternate
embodiment of the confirmer ring of the present invention;
FIG. 20 is an isometric view of the additional alternate embodiment
of the present invention having a confirms ring that incorporates
the spring of FIG. 19;
FIG. 21 is an isometric view of an additional alternate embodiment
that comprises the spring of FIG. 19, the confirmer ring of FIG.
20, and the retainer body of FIG. 5;
FIG. 22 is yet an additional embodiment of the quick connector
assembly of the present invention in which the latch, the spring,
and the ring body are composed of a single type of material;
and
FIG. 23 is a sectional top view of an embodiment of a method of
preventing the disengagement of the male portion of the connection
from the female portion of the connection.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In general, the present invention is directed to a connector for
coupling a male tubular member or conduit to a female receptacle.
The present invention finds utility in, for example, coupling the
tubing disposed between elements of a hydraulic system. It may be
used with plastic or metal conduit. The connector of the present
invention also finds application in external oil lines and hoses as
well as in hydraulic brake systems. The present connector may also
be used in vehicle fuel systems between, for example, the fuel tank
and the fuel pump and the fuel pump and the carburetor or fuel
injection system.
While having particular usefulness in motor vehicles, the connector
of the present invention may also find application in virtually any
situation in which male and female fluid-carrying lines must be
connected.
Very generally, FIGS. 1 through 10 illustrate an embodiment having
a separate confirmer ring and a spring, connected permanently to a
washer-shaped front body, that provides latching movement. FIGS. 11
through 14 illustrate an alternate embodiment of the connector of
FIGS. 1 through 10 which provides a confirmer-installer ring with
wire used as the combined spring-latch. The combined spring-latch
of FIGS. 1 through 10 could be formed from wire, just as the
combined spring-latch of FIGS. 11 through 14 could be formed from a
stamped and formed strip of springy material. A separate confirmer
ring is provided in the embodiments of FIGS. 1 through 14.
In the embodiments of FIGS. 15 through 18, the confirmer ring is
combined with the springing function, and a separate wire form is
attached to the combined confirmer ring-spring. To prohibit axial
movement along the tube, the front (washer-shaped) body of the
front body of FIGS. 1 through 14 include tabs that engage the
combined confirmer ring-spring and assembled formed wire latch. The
separation force between the male and female components is
transferred by this front body from the male to the female.
In FIGS. 19 through 21 there is shown a quick connector assembly
formed from a single type of material that combines the confirmer
ring and latching characteristic, with a separate spring.
In FIG. 22 an embodiment of the present invention is illustrated
which comprises a confirmer ring, a latch portion, and a spring
portion that are all formed from the same type of material.
In FIG. 23 there is shown a device that prevents the disengagement
of the male and female portions of the connector after the male
portion with confirmer ring has been engaged and locked into the
female receptacle. This is a separate device (a removal-preventing
element) which is moved into a detented position, thus inhibiting
movement of the latching lugs, thereby locking the male portion to
the female receptacle to prevent the uncoupling of the male from
the female portion. This preventing element must be moved away from
its detented position to allow decoupling.
While the embodiments of FIGS. 1 through 22 can be formed in a
variety of ways, each of the varied embodiments provides a device
that is captured by the male, and confirms that a connection has
been properly made in FIGS. 3 and 5 through 22.
With specific reference to FIGS. 1 through 10, a preferred
embodiment of a quick connector 10 is used to operably retain a
swivelable male conduit 12 to a female receptacle 14. A preferred
embodiment of the male conduit 12 comprises a rigid metallic member
having a connecting portion 20, a bulged portion 22, a coined
recessed portion 24 and a flanged portion 26 proximate with a
flange 28. The male conduit 12 further has a circumferentially
attached annular bead or bushing 30 and a sealing ring 32. An
O-ring seal 32 and an annular washer 30 are longitudinally
juxtapositioned between the bushing 34 and the flanged portion 26
so as to circumferentially surround the recessed portion 24. The
bead or bushing 34 is combinable with the flanged portion 26 or can
be locked to the conduit 12. The bushing 30 may also be integral
with conduit 12. In coordination therewith, the female receptacle
14 (shown in FIG. 3 in cross section) has an outboard face 36, a
frusto-conical chamfered lead-in section 38, an annular ridge
section 40, a retaining formation or, more specifically, an
internal cavity 42 within which there is an outboard abutting wall
44 and an inboard abutting wall 46, a frusto-conical median section
48, a bore 50 defined by a cylindrical inside surface, and a
passageway 52.
The quick connector 10 is defined by a radial member 54 and a body
segment 56, and, as can best be observed in FIGS. 5 through 8, the
radial member 54 further has a pair of latch segments 58, a
plurality of waist segments 60, 62, 64, and 66, and a pair of leg
segments 68. Each latch segment 58 has a flange 70 on which is
formed an intermediate area 72 having an interface portion 74.
Moreover, each leg segment 68 has a pair of projecting elements 76
which project perpendicularly from each adjacent waist segments 60,
62, 64, and 66. According to the present preferred embodiment, each
projecting element 76 is a formed flat metal strip. Furthermore,
each projecting element 76 has a first outwardly offset formation
80, an adjacent inwardly offset formation 82, and a second
outwardly offset formation 84 proximate with a truss element
86.
Waist segments 60, 62, 64, and 66 define an opening 88 which has
two partially cylindrical interior edges 90 and four corner areas
92. Each latch segment 58, the adjacent waist segments 60, 62, 64,
and 66, and the adjacent pair of projecting elements 76 are
separated from the symmetrically opposing latch segment 58, waist
segments 60, 62, 64 and 66, and projecting elements 76, by a pair
of gaps 94. Accordingly, the leg segments 68 can be radially
compressed toward one another such that latch segments 58 are
radially translatable toward each other. The leg segments 68 and
the projecting elements 76 are configured in a springing manner to
urge the latch segments 58 outward away from one another.
Referring primarily to FIG. 7, the body segment 56 has a pair of
substantially flat faces 96 and 98 bordered by an annular
peripheral edge 105 and an internal aperture 102 defined by an
inner edge. Four bendable tabs 104 also project from the inner edge
surrounding aperture 102. When the body segment 56 is assembled to
the radial member 54, the face 98 is mounted adjacent to the waist
segments 60, 62, 64 and 66. The tabs 104 of the body segment 56 are
then aligned with the corner areas 92 of the radial member 54 and
are folded over upon a portion of each waist segment 60, 62, 64,
and 66 proximate with the leg segments 68. Nevertheless, a space
106 is present between an edge 108 of each tab 104 and the abutting
wall of corner area 92. This allows the waist segments 60, 62, 64,
and 66 and the latch segments 58 to be radially translatable toward
one another between the tabs 104 and the aperture 102 of the body
segment 56. According to the first preferred embodiment, both the
radial portion 54 and the body segment 56 are preferably stamped
from a sheet of metallic material such as stainless steel.
The aperture 102 of the body segment 56 circumferentially surrounds
the male conduit 12 and is longitudinally trapped between the
bulged portion 22 and the bushing 30. This is best shown in FIG. 3.
Movement of the body segment 56 and hence the aperture 102 away
from its location on the conduit 12 is prohibited by a length of
tube having a larger than standard outside diameter formed away
from the tube opening, or by a plastic flexible tubing (such as a
liner) which may also include the front bushing and which can be
used to expand the walls of the flexible plastic tube by being
forced into a non-expanding aperture 102.
Furthermore, the peripheral edge 105 of the body segment 56 has a
smaller diametric dimension than does the annular ridge section 40
and the internal cavity 42 of the female receptacle 14.
Accordingly, the body segment 56 serves as a longitudinal and
radial retention means between the male conduit 12 and the radial
member 54. During insertion of the radial member 54 into the female
receptacle 14, the chamfered section 38 serves to radially compress
the shoulder segments 58 toward one another. Subsequently, the leg
segments 68 urge the shoulder segments 58 radially outward to
engage the internal cavity 42. The interface portion 74 of each
shoulder segment 58 operably engages the abutting wall 46 of the
female receptacle 14. Thus, the radial member 54 is designed to
provide radially expansive retention forces to retain the body
segment 56 to the female receptacle 14. The combination of wall 46
and expanded area 22 of conduit 12 prevents the male from going too
far into the female.
In addition to serving as a longitudinal and radial retention means
between the male conduit 12 and the radial member 54, the body
segment 56 also provides support for the male conduit 12 within the
female receptacle 14. A pair of opposed positioning tabs 110, 110'
are formed as walls partially disposed about the internal aperture
102, as are a pair of opposed positioning tabs 112, 112'. The tabs
110, 110' and the tabs 112, 112' are adjacent the coined recessed
portion 24 of the male conduit 12. These tabs also serve to
interact with a flexible plastic tube to lock body segment 56 to
the outside surface of the plastic tube when the tube is expanded
by the liner (not shown).
One of the principal features of the present invention is a
confirmer ring 114 that allows the installer to easily and quickly
verify whether or not a proper connection has been made between the
male conduit 12 and the female receptacle 14.
The confirmer ring 114, seen in perspective in FIG. 9 and in
cross-section in FIG. 10, includes a cylindrical drum section 116,
a frusto-conical median section 118, and a cylindrical shoulder
120. The shoulder 120 terminates at and is adjacent with an inboard
end wall 122. Opposite the inboard end wall 122 and adjacent the
drum section 116 is an outboard end wall 124. As best illustrated
in FIG. 9, within the outboard end wall 124 is defined an aperture
126. Formed along the wall defining the aperture 126 are pairs of
opposed fingers 128, 128' and 130, 130'. Each of the fingers 128,
128' is disposed between opposed arms that form the leg segments
68, as illustrated in FIGS. 3 and 10. The confirmer ring 114 is
preferably composed of a polymerized material such as Celcon
(trademark for an acetal copolymer produced by Celanese Chemical
Corp.) or a nylon.
The confirmer ring 114 is axially slidable between an unseated
position 132 (shown in FIG. 10) and a seated position 134 (shown in
FIG. 3). In its unseated position 132, the fingers 128, 128' are
generally disposed between the opposed portions of the leg segment
68 that define the second outwardly offset formation 84. While in
this position, the installer squeezes together opposed portions of
the leg segments 68 using either his fingers or a tool such as
pliers (partially shown as compressing members C and C'), thus
moving together opposed portions of the shoulder segments 58. The
combined radial member 54 and body segment 56 are inserted into the
female receptacle 14, and when the body segment 56 abuts the
inboard abutting wall 46. If fully seated against the wall 46, the
interface portion 74 of the radial member 54 locks against the
outboard abutting wall 44, thus preventing outward movement of the
connector 10. The confirmer ring 114 is then moved from its
unseated position 132 axially to its seated position 134, as shown
in FIG. 3. Between these two positions each of the fingers 128,
128' are moved between the two opposed portions of the leg segment
68 that define the adjacent outwardly offset formations 80 and 84.
The outwardly offset formations 80 and 84 act as detents for
fingers 128 and 128'.
The frusto-conical median section 118 of the confirmer ring 114 is
contoured so as to mate with the frusto-conical chamfered lead-in
section 38 of the female receptacle 14. Similarly, the shoulder 120
is contoured so as to enter the annular ridge section 40 and the
retainer assembly 100 (shown in FIG. 5) and pass the abutting wall
44 before it is stopped by the face 36 of the female receptacle 14.
If the male conduit 12 is correctly seated within the female
receptacle 14, the frusto-conical median section 118 and the
shoulder 120 of the confirmer ring 114 will fully nest within the
opening 18 of the female receptacle 14. Once in this correct
position, the axial section 116 of the ring 114 will be uniformly
adjacent the outboard face 36 of the female receptacle 14. This
correct position can be determined by the installer by observation
or touch. If the confirmer ring 114 does not rest evenly, then the
connection between the male conduit 12 and the female receptacle 14
is incorrect and a reconnection must be made.
According to the embodiment of the confirmer ring illustrated in
FIGS. 3 and 10 (FIG. 9 is a generic representation of the ring 114
for the embodiments discussed herein), the removal of the connector
10 and the subsequent disconnection of the male conduit 12 from the
female receptacle 14 cannot be effected until after the confirmer
ring 114 has been withdrawn. This feature is a result of the size
of the gap between the outwardly offset formation 80 of arms 68
shown in FIG. 6 and the width of fingers 128 shown in FIG. 9. This
relationship is best seen in FIG. 3. As illustrated, the gaps 140
between the finger 128 (and likewise, the finger 128') and the
inner walls of the offset formation 80 are relatively narrow. The
gaps 138 between fingers 130 and 130' and conduit 12 are relatively
narrow.
In FIGS. 11 through 14, a second embodiment of the present
invention is shown, generally illustrated as 210. As with the
connector 10, portions of the connector 210 could be made using
strip or wire. A method of urging the interface walls 276 into
contact with the female abutting wall (element 44 in FIG. 3) is
provided by a spring used in the embodiments shown in the several
figures. While the connectors 10 and 210 are preferably constructed
of a metal, the quick connectors of FIGS. 15 through 17 disclose
embodiments that incorporate a spring that may also be of
plastic.
The quick connector 200 is defined by a radial member 254 and a
body segment 256. As illustrated in FIG. 13, the radial member 254
further has opposing pairs of shoulder segments 258 and 258', a
plurality of waist segments 260, 262, 264, and 266, and a pair of
leg segments 268. Each shoulder segment 258 (as well as each
shoulder segment 258') has extending therefrom a latch member 270
having an interlocking segment 272 on which is formed interface
walls 274 and 276. The interface wall 276 locks to the abutting
wall 244 when the male conduit is locked into the female conduit.
Moreover, each leg segment 268 has a pair of projecting elements
278 which project perpendicular from each adjacent waist segment
260, 262, 264, and 266. Like its counterpart described above with
respect to FIGS. 1 through 10, each projecting element 278 has a
first outwardly offset formation 280, an adjacent inwardly offset
formation 282, and a second outwardly offset formation 284
proximate with a distal end 286.
The radial member 254 may be composed of a single formed wire or
may be formed of two formed wire pieces as illustrated. The
embodiment shown comprises a first half 288 and a second half 290.
The halves 288 and 290 are fixed to each other at weld spots 292.
The halves 288 and 290 mostly function as a spring which urges the
interface walls 274 apart.
As with the radial member 54 described above, the segments 272 of
the present embodiment can be radially compressed toward one
another such that the pair of shoulder segments 258 are radially
translated toward the pair of shoulder segments 258'. The leg
segments 268 are also configured to urge the opposing pair of
shoulder segments 258 and 258' outward away from one another.
With respect to the body segment 256, its construction is
substantially identical to that of the body segment 56 discussed
above with respect to FIGS. 1 through 10. An aperture 294 is
centrally defined within the body 296 of the segment 256. Four
bendable tabs 298 also project from the inner edge surrounding
aperture 294. When the body segment 256 is assembled to the radial
member 254, the segment 256 is mounted adjacent to waist segments
260, 262, 264, and 266 opposite from leg segments 268. Tabs 298 of
the body segment 256 are then aligned with the radial member 254
and are folded over upon a portion of each waist segment 260, 262,
264, and 266 proximate with leg segments 268.
The body segment 256 circumferentially surrounds the male conduit
212 and is longitudinally trapped between the bulged portion 222
and bushing 230, as best shown in FIGS. 11 and 12. When used with
flexible plastic tubing (in another embodiment [not shown]), the
body segment 256 is captured by the action of an expanding tube
liner, which may include the front bushing 234 and expanded area
222. This is best shown in FIG. 12.
As with the above-discussed embodiment, the body segment 256 serves
as a longitudinal and radial retention means between the male
conduit 212 and the radial member 254. The receptacle 214 includes
an outboard face 236, an entry frusto-conical section 238, an
annular ridged section 240, an internal cavity 242 within which is
formed outboard abutting wall 244 and inboard wall 246, a
frusto-conical median section 248, a bore 250 defined by a
cylindrical inside surface, and a passageway 252. During insertion
of the radial member 254 within female receptacle 214, the
chamfered section 238 serves to radially compress the opposing pair
of shoulder segments 258 and 258' toward one another. Subsequently,
the leg segments 268 urge the opposing pair of shoulder segments
258 and 258' radially outward to engage the undercut groove 242.
The interface wall 276 of each pair of shoulder segments 258 and
258' operably engages the abutting wall 244 of the female
receptacle 214. Thus, as with the embodiment of FIGS. 1 through 10,
the radial member 254 is designed to provide radially expansive
retention forces to retain the body segment 256 to female
receptacle 214.
The body segment 256 also provides support for the male conduit 212
within the female receptacle 214. A pair of opposed positioning
tabs 300, 300' are formed as walls partially disposed about the
aperture 294, as are a pair of opposed positioning tabs 302,
302'.
As illustrated, the present embodiment also employs a
confirmer-installer ring 304 that allows the installer to easily
and quickly verify whether or not a proper connection has been made
between the male conduit 212 and the female receptacle 214 as well
as install the male conduit 212 into the female receptacle 214.
The confirmer-installer ring 304, shown in cross-section in FIGS.
11 and 14, has an external proportion that is substantially
identical to the ring 114 discussed above. Within the body 306 of
the ring 304 and extending from a central aperture are pairs of
opposed formations 308, 308' and finger 310 (the latter having an
opposed twin unseen in the figures). Each of the formations 308,
308' is disposed between opposed arms that form the leg segments
268, as illustrated in FIGS. 11 and 14.
Like the above-described embodiment, the confirmer-installer ring
304 is axially slidable between an unseated position 312 (shown
phantomed in FIG. 14) which is only used to assemble ring 304 to
legs 268, and a seated position 314 (shown in FIG. 11). In its
unseated position (shown phantomed), the finger 310 and its unseen
twin is generally disposed between the opposed portions of the leg
segment 268 that defines the second outwardly offset formation 284.
As may be understood, the outwardly offset opening of formation 280
is larger than the outwardly offset formation 284. This prevents
the formation 280 from being locked against the finger 310 and its
unseen twin before the wall 276 is completely disengaged from the
abutting wall 244. While in this seated position, the installer
squeezes together opposed portions of the leg segments 68 using
either his fingers or a tool such as pliers partially shown as
pliers P, thus moving together the opposing pairs of shoulders 258
and 258'.
Insertion of the connector 210 is as above with the combined radial
member 254 and body segment being inserted into the female
receptacle 214 as shown in FIG. 11. This allows the confirmer ring
114 (FIG. 3) to be used as a confirmer-installer ring because there
is sufficient gap between the finger 310 and its unseen twin and
the formation 280 of the leg segments 268 to allow the locking and
unlocking of the wall 276 against the area 244.
If the male conduit 212 is correctly seated within the female
receptacle 214, the contoured portion of the confirmer ring 304
fully nests within the opening 218 of the female receptacle 214.
The correct position can be determined by the installer by
observation or touch. If the confirmer ring 304 does not rest
evenly against the body of the receptacle 214, then a reconnection
must be made.
According to the present embodiment of the confirmer-installer ring
304, the removal of the connector 210 and its associated male
conduit 212 from the female receptacle 214 is possible regardless
of the position of the confirmer-installer ring 304. As is
understood, this design is opposite that set forth in the
previously discussed embodiment. As illustrated in FIG. 11, gaps
315 and 318 are defined between the finger 310 and the formation
280 and the twin of the finger 310 and the formation 280' (not
shown).
It may be apparent that many previously-discussed elements are
alike or are substantially similar in both design and function to
elements of the remaining figures. These elements include:
Connectors 10 and 210; male conduits 12 and 212; female receptacle
14 and 214; bulged portions 22 and 222; recessed portions 24 and
224; flanges 28 and 228 (or a combination of flanges 28 or 228 and
bushings 34 or 234 that are formed on conduit 12 or 212, or are
part of a liner that is installed in the interior of a plastic
conduit, all not shown); annular bushings 30 and 230; ridge
sections 40 and 240; lead-in chamfer areas 38 and 238; annular
ridge sections 40 and 240; internal cavities 42 and 242; and
outboard abutting walls 44 and 244. Accordingly, and with respect
to the remaining FIGS. 15 through 22, reference may be made, for
example, to "connector 10", but it is to be understood that the
specified element could as easily be "connector 210". Only one of
two like elements will be identified and discussed to avoid
confusion.
Referring to FIGS. 15, 16, 17A, and 17B, a retainer body 556 is
shown, as is a retainer form 558. The retainer form 558 in FIG. 16
is shown in a full view and a second adjacent retainer form 558 is
shown phantomed below in the approximate location it would have
when mounted on a confirmer-installer ring-spring combination
composed of a polymerized material.
The body 556 transfers the force tending to pull apart the male and
female conduits from the male portion of the connector 10 to the
retainer (shown in FIGS. 15, 16, and 17), which in turn transfers
the force to the abutting wall 44 in the female portion of
connector 10.
The retainer body 556 has the general shape of a washer having with
projections towards the center 510, 510', and 512 and 512' for
mounting the body 556 on tubing 12. The body 556 is prevented from
moving axially along the tube 12 by the bulged portion 22 and is
prevented from moving in the opposite direction by the outer
bushing 30. As in previous figures, the outer bushing 30 is
prevented from detachment from portions 24 of the tube 12 by the
flange 28.
The outer periphery 505 of the body 556 is interrupted by a
plurality of set-off holding tabs 504. These tabs 504 are formed so
as to have their rear surface parallel to the rear surface 508 of
the body 556 so that the offset between the two is sufficient to
allow the tabs 504 to have clearance around the wire form 558 in
the area 560.
Accordingly, the tabs 504 work in conjunction with the confirmer
ring-spring 600 (in FIGS. 17A and 17B) with the formed retainer
form 558 installed into the ring-installer body 601 to allow
connection between the ring-installer body 601 and the body 556.
This connection prevents the confirmer ring-spring 600 from moving
away from the flange 28 of tube 12 when the tube 12 is not
installed into female receptacle 14.
The bottom inside surface of the tabs 504 allow the installed
ring-spring 600 with the retainer form 558 to have the proper
engage/disengage stroke of the combined ring-spring 614, thus
allowing engagement or disengagement of retainer wire form 558.
FIG. 16 shows the retainer wire form 558. The form 558 is attached
to the ring-spring 600 by means of the area 560 of the form 558
(which drives the wire form 558 into engagement in the female
receptacle into the internal cavity 42). Ledges 624 engage legs 568
of the wire form 558 and a wire form lock 586 engages wall 620 of
the ring-spring 600. The assembly is prevented from becoming loose
by bosses 622 which are formed on rear the internal wall 620 of the
ring-spring 600.
The assembly of wire form 558 to ring-spring 600 is accomplished by
first installing area 560 of wire form 558 over area 676 of the
ring-spring 600, then snapping hook lock 586 of wire form 558 into
the pocket formed by bosses 622 and the rear internal wall 620 of
the ring-spring 600. As wire form lock 586 is locked by bosses 622,
some deflection is required of the legs 568 of the wire form 558 as
legs 568 are also urged into nesting along the internal ledge 624
of the ring-spring 600. The ring-spring 600 includes an outer drum
608.
The springing areas 610 of the ring-spring 600 are defined by slots
defined between the outer surface of the ring-spring 600 to its
inner surface, illustrated as areas 612 and 614. The volume of
material that must be deformed in the spring area 610 is governed
by the disengagement forces that can be applied and the engagement
forces developed by the action of the area 570 of the wire form 558
being pushed into the lead-in chamfer area 38 illustrated in FIGS.
10 and 11. The ring-spring 600 also includes an area 602 that urges
the wire form 558 into the female receptacle 14 by pushing on the
assembly 650 that is shown in FIG. 18. The outer surface 604 nests
in the ridge sections 40 and lead-in chamber 38 of the female
receptacle 14. The radial outside area 606 provides visual
confirmation of proper connection by nesting with the face 36 of
the female receptacle 14.
FIG. 18 shows an assembly 650 of the wire form 558 and the
ring-spring 600. The forces on the male conduit 12 are transferred
to the female receptacle 14 by means of the body 556.
Reference is next made to the embodiment of FIGS. 19, 20, and 21.
These figures disclose an embodiment having a separate material
spring only and a confirmation ring and latches (comprising
engaging lugs).
FIG. 19 shows the spring 758 and FIG. 20 shows the body portion
700. FIG. 21 shows an assembly 750 which represents the combination
of spring 758 and body portion 700 assembled over the front body
556 with the outer periphery 505 truncated at the bottom or root of
the tabs 504 which are assembled into the slots 725 so that the
ends 514 of the tabs 504 are flush with the area 704 of the body
700. This allows the body 700 to be attached to the front body 556,
so that the body 700 will not move from the end of the conduit 12.
The pull apart forces between the male portion of the conduit 12
and the female receptacle 14 are resisted by engaging the latch
area 776 on body 700 with the female abutting wall 44. The hole 502
formed in the front body 556 through which the male conduit 12
passes transfers the male/female separation force from the male
conduit 12 to the front body 556, then through the area 704 of the
body 700 and to the female receptacle 14 via engaging the latch
area 776 which abut the wall 44 in the female receptacle 14.
The spring 758 allows the body 700 to be pivoted in the loop area
785 of the spring 758 and the full round portion of body 700 behind
the cut out portion 710. This pivot is required for the outer
surface 774 of the latch area 776 to pass through the ridge section
40 of female receptacle 14. The latch area 776 is urged outward
into the internal cavity 42 by the spring 758 engaging the inner
body pocket (not shown) of the body 700.
With respect to FIG. 19, a detailed view of the spring 758 is
shown. The spring 758 consists of an outwardly turned area 786
which is used to abut the body 700 and to prevent movement out of
the body 700 past the rear wall 720 of the body 700 and an inside
tab (not shown) that abuts the loop areas 785 of the spring 758
between the legs 768 of the spring 758.
FIG. 20 shows the body 700 with outside diameter 708, and inwardly
stepped wall 706 that is flush with and is spaced apart from the
face 36 of female receptacle 14, a chamfered surface 702 that nests
in the lead-in and compressing chamfer area 38, and an area 704
which passes through the ridge section 40 in the female receptacle
14. The latch area 776 projects outward from the area 704, and a
plurality of slots 725 are formed through the area 704 and
accommodate tab ends 514 of a front body 556 having the periphery
505 removed between the tabs 504 and the outside tabs 504 of the
front body 556 of FIG. 15. The outside surface of the largest
diameter 708 of the body 700 is partially interrupted by two
cut-out areas 710 (defining inner surfaces 712) that allow the body
700 to be squeezed to permit the outer surface 774 of the latch
area 776 to pass through the ridge section 40 in the female
receptacle 14. Aperture 722 of body 700 provides an opening for
positioning of loop areas 785 of the springs 758. A hole 718 formed
through the rear wall 720 of the body 700 provides stability of the
body 700 when mounted on the conduit 12.
FIG. 22 shows an embodiment in which the latch, the spring and the
confirmer ring are formed from a single material. In the embodiment
shown, the material is a polymerized material such as nylon,
acetal, or polypropylene. This embodiment could be composed of a
metal (at higher cost), provided that the metal has good spring
characteristics.
The connector of FIG. 22, generally illustrated as 800, comprises a
body 801 having an outer drum 808, a chamfer portion 802, and a
step 806 formed therebetween. The drum 808 defines a rear wall 820
having a centrally-defined hole 818 formed therein. A cylindrical
area 804 is formed on the chamfer portion 802 area 804. The
cylindrical area 804 is divided roughly into two halves by a cut
out portion 810. Slots 825 are defined in the cylindrical area 804
and function as the slots 725 of the embodiment of FIGS. 20 and 21.
Projecting outward from area 804 is latching area 876 having formed
thereon an outer surface 874.
To achieve the necessary springing function, two notches 810 are
formed on the drum 808, chamfer portion 802, and step 806. The area
of the drum that is not cut-out and wall 820 provide the springing
function. Wall 820 has a through hole 818 which operates the same
as hole 718 of FIG. 20.
Referring to FIG. 23, a method is shown for preventing the
unlatching of the engaging lugs on springing type retainers that
hold the male portion of a connection inside a female portion of a
connection by preventing the springing portions of the retainer
from translating towards each other. In FIG. 23 a sectional top
view of a preventing element, generally illustrated as 950, is
shown. The preventing element 950 is slidable relative to the male
conduit and the retainer. The element 950 is shown in relation to
the retaining confirming-installing device of FIG. 22, together
with a portion of the male conduit. The element 950 prevents the
unlocking of the confirming-installing device of FIG. 22 from the
female receptacle.
The element 950 and the confirming-installing device of FIG. 22
forms an assembly, generally indicated as 900. The assembly 900
includes the device 800 mounted on a tube 912 having a bulged area
920. The preventing element 950 also shown, and is composed of a
body 952 having a through hole 954 and a pair of spring arms 956
and 958. The spring arms 956 and 958 are disposed along tube 912
with areas 960 and 962 terminating the spring arms 956 and 958. The
areas 960 and 962 have surfaces 964 and 966 that operate to spread
the spring arms 956 and 958 apart when the body 952 is urged
forward against the tube side of the bulged area 920 formed on the
tube 912. The spreading of the spring arms 956 and 958 move areas
960 and 962 which also have areas 968 and 970. These latter
elements are forced into the cut-out areas 810 of device 800. This
arrangement prevents the movement of latching areas 876 from being
unlatched from the female receptacle (not shown). The preventing
element 950 is detented (not shown) in device 800 in the
removal-preventing, forward position where areas 968 and 970
prevent the unlatching of the device 800.
Those skilled in the art can now appreciate from the foregoing
description that the broad teachings of the present invention can
be implemented in a variety of forms, including the combination of
the strip or wire and the ring. Therefore, while this invention has
been described in connection with particular examples thereof, the
true scope of the invention should not be so limited since other
modifications will become apparent to the skilled practitioner upon
a study of the drawings, specification and following claims.
* * * * *